Car-axle box



(No Model.)

H. MILLHOLLAND.

0A3 AXLE BOX. No. 260,112. Patented June 27, 1882..

wiiness es v In yen/i021 UNITED STATES PATENT OFFICE.

HENRY MILLHOLLAND, OF CUMBERLAND, MARYLAND.

CAR-AXLE BOX.

SPECIFICATION forming part of Letters Patent No. 260,112, dated June 27, 1882.

Application filed April 10, 1882.

T 0 all whom it m ay concern Be it known that I, HENRY MILLHOLLAND,

' a citizen of the United States, residing at Gumberland, in the county of Alleghany and State of Maryland, have invented a new and useful Improvement in (Jar-Axle Boxes, of which the following is a specification.

Myinvention relates to improvements in caraxle boxes which, by means ofa ring secured to the axle and rotating therewith and certain improvements in the construction of the box, produce a constant condition of lubrication of the bearing; and the objects of my improvements are, first, to provide a continuously-lubricated bearing for thejournal second, to atford facilities t'or retaining the oil in the box, in order to prevent it from spreading over the car-wheels, thus, in addition to perfect lubrication, insuring a pertectly-conditioned wheeltread for the operation of the brake-blocks and, third, to reduce the consumption of lubricants to a minimum by the prevention of waste. I obtain these objects by devices illustrated in the accompanying drawings, in which- Figure 1 is a vertical section of a car-journal box as ordinarily constructed and in common use; Fig. 2, a rear view of the same. Fig. 3 is a vertical section of a journal-box containing the improvements. Fig. 4 is a rear view ofthe same. Fig. 5 is a plan ofthe collar. Fig. 6 is the collar in section.

The operation of the device is as follows: First, the axle being in motion, the oil, finding its way to the ring A, is thrown from the periphery ot' the ring by centrifugal force and projected against the walls of the box, whence by gravitation it falls into the cavity D, returning through the hole a; to the packing G, by which itis carried to the'journ'al J; second,

(N0 model.)

tate toward the point E, whence it drops upon thejournal J. The inside surface of the wall 0 is made parallel to the back of the ring for the purpose of facilitating the raising of the,

box to remove the bearing for repairs, and also to afford room for the lateral travel otthe ring consequent upon the end-play customarily given to the bearings.

Ihave been made aware since the completion of my invention, by an examination of the drawings in the Patent Office, that prior to my invention a collar has been used to assist in lubrication. I therefore do not claim such an application of the use of the collar, broadly; but

What I do claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with the journal-box having the upper inwardly-inclined surface, 13, terminating in point E,of the axle provided with the col1arA,whereby the lubricant thrown upon the surfaceB is conducted down upon the journal, as specified.

2. The combination, with. the journal-box having the inwardlyinclined surfaces B O, cavity D, and hole as, of the axle provided with collar A, whereby the lubricant is returned to the journal and box, as specified.

HENRY MILLHOLLAND.

Witnesses:

DE B. RANDOLPH KEIM, D. P. OowL. 

